I am skeptical that a 4 point difference is significant. Also I noticed on the IQ test I took that there was one or more questions about all people being equal in ability or something of that nature. Depending on how you answered these questions would affect your IQ score, so at least that test was probably bias in favor of the egalitarians. In addition if there really is a difference between those that profess to be racist and those that claim not to be, the difference may be due to society punishing racist, and intellegent racists are less likely to report their true feelings and are thus counted as non racists